Crown cap

ABSTRACT

It is a primary object of this invention to improve the ergonomic properties of crown caps provided with strips detachable with the aid of tag thereof, more specifically to increase the usability and safety of the caps, and to reduce the possibility of self-uncorking of said easy-open closures and the interengagement therebetween during transportation and storage of corked bottles. Several embodiments of said crown caps, i.e. the caps provided with a combined tag, an incorporated tag and a bent tag-strip are also enclosed.

TECHNICAL FIELD

The invention relates to corking means for containers, particularly itrelates to bottles crown caps with lines of weakness, tearing-strips andtags.

BACKGROUND ART

Different designs of crown caps for corking bottles are known, whichmade as a tin cap with a crowned skirt and provided with a tearing-tagwhich allows to uncork a corked bottle easy by means of removing a partof a back and the crowned skirt, which overlaps a neck of the corkedbottle, along a line of weakness. As a rule, an elastic round laying isinserted inside the crown cap.

A number of designs stipulates a flat tearing tag which is made as aplate having an opening thereon and fixed to the back outside of thecrown cap by means of a rivet, and the plate serves as a bending tag anddoesn't exceed overall dimensions of the back. The plate can be formedas a simmetrical elongated tongue having a demicircular opening for afinger [patent CN 2090364U, 1992] or as a trapezium having the roundedcorners [patent CN 2237607Y, 1996] or as an oval [patents CN 2115979U,1993; CN 2090367U, 1992].

Known crown cap is choosen as a prototype of first three offeredvariants, it is provided with a round plate having the externaldiameter, which doesn't exceed diameter of a back of the crown cap, andlaying on an outer surface of the back, where the round plate isconnected to the back by means of a rivet and has an opening which ismade to form a ring-shaped tab when the edge of the round plate isturning up [publication WO 00/51906, 2000].

Abovementioned crown caps having separate plate-tags have low ergonomicproperties as follows:

-   -   a) the plate is made by means of punching therefore its edge may        be sharp or have agnails that may wound the user;    -   b) during transportation of the corked bottle the plate may turn        around the rivet and leave for dimensions of the back of the        crown cap by means of a casual external force that may result in        involuntary uncorking, in particular under action of other        casual external force;    -   c) there is a small opening for a finger of large men in designs        with elongated tags because diameter of standard crown caps is        rather small.

Accordingly other designs it is a tearing tag which is formed as a partof a whole back of a crown cap, and the tag is bent and then torn offtogether with a part of a crowned skirt during uncorking [for example,patent application CN 1043678A, 1990]. As a prototype of fourth offeredvariant it is choosen known crown cap which is made as a cap with acrowned skirt, and a round-shaped tag having a round-shaped opening forfinger is formed on its back [patent CN2221558Y, 1996]. It is possibleto separate the tag from the crown cap back along a nonclosed externalgeneratrix whose ends are connected smoothly with lines of weaknessforming a tearing strip having a width no more than greatest traversalsize of the tag. An elastic round laying corresponding to diameter of acorking bottle neck is inserted inside the crown cap. Deficiencies ofthe known crown cap are connected to the following:

-   -   a) the cross-section of the ring-shaped tag has a small rigidity        therefore the user may pinch a finger during uncorking;    -   b) tearing of the tag from the back along lines of weakness is        connected with significant efforts;    -   c) the elastic laying may be damaged through an excision by        means of an external action.

Accordingly other group of designs a crown cap also is made from a sheetmaterial as a cap with a crowned skirt, but a tag is made as a stripentirely with the crown cap, and one end of the strip is provided with aring-shaped tag having and other end of the strip is conjugated withperiphery edge of the crowned skirt. For example, it is known crown capwhich is provided with two lines of weakness made on the crown cap,these lines begin from places of the conjunction of the strip with theperiphery edge of the crowned skirt with forming a tearing strip [patentGB 1139247, 1969]. Both the tag and the strip considerably supportoverall dimensions of the cap that creates technological difficultiesduring transportation of manufactured caps and corking bottles and alsoaugments probability of involuntary uncorking of the corked bottle froma casual exposure. Also the posibility of involuntary uncorking thecorked bottle by means of casual external action is increased.

As a prototype of fifth offered variant it is choosen known crown caphaving a strip bent so, that one part of the strip lays on an outersurface of a crowned skirt and other part of the strip lays on an outersurface of the crown cap back [patent CN2205361Y, 1995]. Two lines ofweakness made on the crown cap, these lines begin from places ofconjunction of the strip with the periphery edge of the crowned skirtwith forming a tearing strip. There are some deficiencies of the knowncrown cap as follows:

-   -   a) the ring-shaped tag extends above a surface of the crown cap        back therefore, at first, posibility of involuntary uncorking of        the corked bottle from a casual exposure is increased, and        second, posibility of the interengagement between crown caps of        corked bottles during transportation and storage is increased        too;    -   b) strong materials, for example steel, are used for manufacture        of crown caps having bent strips because the strip may burst in        places of bends if it will be used materials having rather small        durability, for example aluminum alloys, however significant        efforts for tearing the tearing strip along the lines of        weakness are necessary during uncorking when strong materials        are used;    -   c) the crown cap is made by means of punching therefore its edge        may be sharp or have agnails that may wound the user.

DISCLOSURE OF THE INVENTION

It is a primary object of the present invention to improve the ergonomicproperties of crown caps provided with strips detachable with the aid ofa bending tag thereof, more specifically to increase the usability andsafety of the caps. It is another object to reduce the possibility ofself-uncorking of said easy-open crown caps and the interengagementtherebetween during transportation and storage of corked bottles.

Abovementioned objects are solved by means of five offered variants ofcrown caps for corking bottles.

Common features for first three variants are that a crown cap is made asa cap with a crowned skirt and provided with a plate which carries outfunction of a bending tag and lays on an outer surface of a back of thecrown cap, doesn't exceeding overall dimensions of the crown cap back,and which is fixed to the crown cap back by means of a rivet and has anopening therein. A line of weakness is made on the crown cap, it beginsfrom periphery edge of the crown skirt and comes to the periphery edgewith forming a tearing strip having a hole for the rivet therein. Commonnew feature for these three variants is that a length of an arc of thetearing strip from the beginning of the line of weakness up to itsextremity does not exceed π/2 radian, that allows to detach the tearingstrip without great efforts. Also other common new feature for thesevariants is that it may be an elastic round laying corresponding todiameter of a corking bottle neck which is inserted inside the crowncap.

Also the new feature for the first variant is that at least a part ofedge of the plate and/or the opening is spinned in, and besides theplate lays on the outer surface of the back of the crown cap by its sidewhich the edge bent by spinning in is located on, that excludespossibility of wound of the user. Since the height of the location oftop of the plate in this case is augmented by thickness of the plate itit may be a dint in it for the head of the rivet, and in case the heightof this head is no more than the size of the dint it is excluded theengagement or wound of the user by the head of the rivet or its edges.

The new feature for the second variant is that it is at least one tonguemade on an outer surface of the crown cap back and inserted into theopening in the plate to come ito contact with an edge of the opening.This tongue excludes possibility of of rotation of the plate around ofthe rivet and its getting out overall dimensions of the crown cap back(in case when the centre of the rivet is distinct from the centre of acircle of the crown cap back). From the point of view of manufacturingtechniques (as punching) it is better to make this tongue having aspherical form. Also it is better when the height of the tongue does notexceed thickness of the plate.

Accordingly the third variant it is a plate which is round as in theprototype, its external diameter does not exceed diameter of the crowncap back, and the opening is executed so to make a ring-shaped tab whenthe edge of the round plate is bending up. Except for the abovementioned length of an arc of the the tearing strip, the new featuresare that the opening has a ring nonclosed shape and is symmetric inrelation to a diametrical axis of the round plate, and besides the holefor the rivet is located on said diametrical axis so, that it is in asegment of the round plate in which there is no the ring-shaped opening.Thus the crown cap may be remove from the bottle neck with using boththe external ring-shaped tab and/or the internal tag having the shape ofa part of a circle and formed along internal diameter of the opening. Itis better when a length of an arc of the ring-shaped opening is π . . .11π/6 radian, and/or the centre of the ring-shaped opening coincideswith the centre of the round plate, and/or the ring-shaped opening hasthe sizes relatively of external diameter of the round plate as follows:external diameter—0,5 . . . 0,9, internal diameter—0,4 . . . 0,85.

It is better to make at least one spherical tongue on an outer surfaceof the crown cap back which is inserted into the opening as for thesecond variant.

It is better when there are gettings made in the ends of the ring-shapedopening on the side of its internal diameter that facilitates a bendingof one of the tags, for example the ends of the ring-shaped opening maybe rounded, and diameter of these rounds is more than width of thering-shaped opening. In this case, the internal tag1 is bent more easyif external diameter of the ring-shaped opening conjugates with roundssmoothly.

Also a crown cap may be made by a combination of any two or all threeabovementioned variants.

Accordingly the fourth variant it is a crown cap for corking bottleswhich is made as a cap with a crowned skirt and provided with around-shaped tag formed on a back of the crown cap entirely with it andhaving a round-shaped opening for finger therein. It is possible toseparate the tag from the back along a nonclosed external generatrixwhose ends are connected smoothly with non-intersecting lines ofweakness which are ended on a periphery edge of the crowned skirt withforming a tearing strip having a width no more than greatest traversalsize of the tag. An elastic round laying corresponding to diameter of acorking bottle neck is inserted inside the crown cap. The new featuresare that a rigid round laying corresponding to diameter of the corkingbottle neck is in addition inserted inside the crown cap before theelactic laying, and besides each of said layings has a plate-shaped formand is made with a recess opposite the opening, and also the tag isseparated from the crown cap back by means of a slit located along thenonclosed external generatrix. The rigid laying, for example made ofmetal or plastic, does not allow to break through the fragile elasticlaying casually, and the recess in it and the slit in the back allow tohitch the tag by the finger and to bend it easily.

The rigidity of the tag, excluding its curving and pinching the fingerat use, may be increased by using a stiffening rib made on the tag andlocated between edge of the opening and the nonclosed externalgeneratrix, so convexity of the stiffening rib may be directed downwardsor upwards. Also both the rigidity and safety of use may be increasedwhen at least a part of edge of the opening is spinned in to inside ofthe crown cap.

It is better when the tag with the opening as well as the tearing stripis symmetric in relation to a diametrical axis of the crown cap back.And the opening may be made in the form of an oval so that the greatestsize of the oval is on a line which is perpendicular to axes of asymmetry of the tag, and the nonclosed external generatrix isequidistant to the oval generatrix so that distance between itsextremities is less than the greatest size of the oval. The rigid roundlaying may have an open excision formed as a truncated sector, in thiscase lateral sides of the sector are coincided approximately with thelines of weakness of the crown cap.

Accordingly the fifth variant it is a crown cap for corking bottleswhich is made from a sheet material as a cap with a crowned skirtentirely with a tag-strip, that one end of the tag-strip is providedwith a tag having an opening for finger and other end of the tag-stripis conjugated with periphery edge of the crowned skirt. The tag-strip isbent so, that one its part lays on an outer surface of the crowned skirtand other part of the tag-strip lays on an outer surface of the crowncap back. Two lines of weakness are made on the crown cap, they beginfrom places of the conjunction of the tag-strip with the periphery edgeof the crowned skirt, with forming a tearing strip. The new features arethat it is the plate-shaped recess made on the crown cap back, thecenter of the plate-shaped recess coincides with the centre of a circleof the crown cap back, diameter of the plate-shaped recess is no morethan internal diameter of a neck of a corked bottle and not less thandiameter of circumscribing circle of the external generatrix of the tag,and the tag lays on the outer surface of the crown cap back in the placeof the plate-shaped recess and does not extend over the external sizesof the plate-shaped recess. Thus the tag extends above a surface of thecrown cap back less, and also the tag is in addition fixed by lateralwalls of the plate-shaped recess that reduces the possibility ofself-uncorking by means of a casual external force and the coupling withother subjects during transportation and storage.

It may be a round- or ring-shaped elastic laying corresponding todiameter of a corking bottle neck, which is inserted inside the crowncap.

It is better when the tag with the opening as well as the tearing stripis symmetric in relation to a diametrical axis of the crown cap back.

It is better when the tag has round-shaped form.

The plate-shaped recess may be made round on a plan view.

It is better when depth of the plate-shaped recess is approximatelyequal to thickness of the sheet material.

The lines of weakness may form the tearing strip which is symmetric inrelation to a diametrical axis of the crown cap back (narrowed,extending or with equal width).

It is better for easy-uncorkning when stress concentrators are made inthe places of the conjunction of the tag-strip with the periphery edgeof the crowned skirt (as recesses, excisions etc.).

It is better for corking technologically when the part of the tag-striplaying on the outer surface of the crowned skirt is is equidistant tothis outer surface (other words it is crowned too).

It is more safe at use when at least a part of edge of the opening forthe finger or a generatrix of this opening is spinned in. Also it servesas a a stiffening rib and and excludes pinching the finger. The bendingrigidity of the tag may be increased by means of a separate stiffeningrib made on the tag and located between the external generatrix of thetag and edge of the opening for the finger.

The term “line of weakness” by all five variants may mean a continuousline as well a dash line, for example which is made by punching withfloturning, other words by decrease of thickness of the sheet materialof the crown cap.

BRIEF DESCRIPTION OF THE FIGURES ON THE DRAWINGS

The invention is described with reference to the accompanying drawings.

FIG. 1-3 show a crown cap having a separate combined tag: FIG. 1 is itstop plan view, FIG. 2 is its increased vertical cross-sectional viewtaken along the line A-A of FIG. 1, FIG. 3 is its increased local sideview I of FIG. 2.

FIG. 4-7 show a crown cap having an incorporated tag: FIG. 4 is its topplan view, FIG. 5 is its local cross-sectional view taken along the lineB-B of FIG. 4, FIG. 6 is its increased vertical cross-sectional viewtaken along the line C-C of FIG. 4, FIG. 7 is a top plan view of aprobable embodiment of its rigid laying assembled with its elasticlaying.

FIG. 8-10 show a crown cap having a bent tag-strip: FIG. 8 is its topplan view, FIG. 9 is its increased vertical cross-sectional view takenalong the line D-D of FIG. 8, FIG. 10 is its side elevational view E ofFIG. 9.

Lines of weakness on FIGS. 1, 2, 4, 8, 10 are shown by dotted lines.

THE EXAMPLE FOR CARRYING OUT THE INVENTION Example 1 A Crown Cap Havinga Separate Combined Tag

The crown cap having a line 1 of weakness forming a tearing strip 2includes a crowned skirt 3 and a back 4 having two spherical tongues 5thereon. An elastic round laying 6 is inserted inside the crown cap, around plate 8 including both a ring-shaped tab 9 and a demicircular tag10 is fixed outside by a rivet 7, and both the tab 9 and tag 10 areformed by a opening 11 having rounded gettings 12. Edges 13, 14, 15 ofthe plate 8 are spinned in with obtaining a bending 16. Heads of therivet 7 are located into dints 17, 18 made in the plate 8 and the back 4respectively.

The crown cap may be removed from a corked bottle by means of twomethods—by bending the tab 9 with its further hitching by one finger orby bending tag 10 with its further locking by two fingers, and then thestrip 2 is tearing along the line 1.

Example 2 A Crown Cap Having an Incorporated Tag

The crown cap having lines 19 of weakness forming a tearing strip 20includes a crowned skirt 21 and a back 22 having a tag 24 formed bymeans of both a slit 23 and an oval opening and having a convexstiffening rib as shown on FIG. 5. Both an elastic round laying 25 and arigid laying 26 having a plate-shaped form are inserted inside the crowncap, and laying 26 has a recess formed by both a flat bottom 27 andslant walls 28, a bent edge 29 fixing the laying 25. The laying 26 mayhas an open excision formed as a truncated sector as shown on FIG. 7.Material of the laying 26 is sheet metal or rather strong plastic. Sharpedges of the tag 24 may be spinned in as shown on FIG. 3.

For uncorking the tag 24 is bent up by a finger and then removed fromthe crown cap together with the strip 20 along the lines 19.

Example 3 A Crown Cap Having a Bent Tag-Strip

The crown cap having lines 30, 31 of weakness forming a tearing strip 32includes a crowned skirt 33 and a back 34 having a plate-shaped recess35 having a depth of the plate-shaped recess 35 which is approximatelyequal to thickness of sheet metal which is used for punching the crowncap. An elastic round laying 36 is inserted inside the crown cap, and aring-shaped tag 37 having a spinned edge 38, 39 is located outside andcoupled with the crown skirt 33 by means of a strip 40. The strip 40 hasbends 41, 42, and its lower part 43 has a crowned grooves and isequidistant to a crowned grooves of the skirt 33. Gettings 44, 45functioning as stress concentrators are made in the places of theconjunction of the strip 40 with the skirt 33 wherein the lines 30, 31are beginning.

For uncorking the tag 37 is preliminary bent up, then it is hitched byone finger and pulled upwards-apart, thus the strip 32 is torn from thecrown cap along the lines 30, 31 from the gettings 44, 45.

The crown cap by all three examples may be made by punching of thevarnished lithographic sheet metal (it is better to use white sheetmetal). The elastic layings may be made of a cardboard or a fuse, orthey are formed of BX-plastisol, BX-granulate or polyethylene by expresstechnology. Express adhesion varnishes are used for last three types,and choice is determined by type of the material.

1. A crown cap for corking bottles which is made as a cap with a crownedskirt, the crown cap is provided with a plate which carries out functionof a bending tag and lays on an outer surface of a back of the crowncap, doesn't exceeding overall dimensions of the crown cap back, andwhich is fixed to the crown cap back by means of a rivet and has anopening therein, and besides a line of weakness is made on the crown capwhich begins from periphery edge of the crowned skirt and comes to theperiphery edge with forming tearing strip having a hole for the rivettherein, which differs in that a length of an arc of the tearing stripfrom the beginning of the line of weakness up to its extremity does notexceed π/2 radian, and at least a part of edge of the plate and/or theopening is spinned in, and besides the plate lays on the outer surfaceof the crown cap back by its side which the edge bent by spinning in islocated on.
 2. The crown cap of claim 1, which differ in that the platehas a dint for a head of the rivet.
 3. The crown cap of claim 1, whichdiffer in that an elastic round laying corresponding to diameter of acorking bottle neck is inserted inside the crown cap.
 4. A crown cap forcorking bottles which is made as a cap with a crowned skirt, the crowncap is provided with a plate which carries out function of a bending tagand lays on an outer surface of a back of the crown cap, doesn'texceeding overall dimensions of the crown cap back, and which is fixedto the crown cap back by means of a rivet and has an opening therein,and besides a line of weakness is made on the crown cap which beginsfrom periphery edge of the crowned skirt and comes to the periphery edgewith forming tearing strip having a hole for the rivet therein, whichdiffers in that a length of an arc of the tearing strip from thebeginning of the line of weakness up to its extremity does not exceedπ/2 radian, and it is at least one tongue made on an outer surface ofthe crown cap back and inserted into the opening in the plate to comeito contact with an edge of the opening.
 5. The crown cap of claim 4,which differ in that the tongue has a spherical form.
 6. The crown capof claim 4, which differ in that the height of the tongue does notexceed thickness of the plate.
 7. The crown cap of claim 4, which differin that an elastic round laying corresponding to diameter of a corkingbottle neck is inserted inside the crown cap.
 8. A crown cap for corkingbottles which is made as a cap with a crowned skirt, the crown cap isprovided with a round plate, which carries out function of a bendingtag, having the external diameter which does not exceed diameter of aback of the crown cap, and lays on an outer surface of the crown capback, doesn't exceeding overall dimensions of the crown cap back, andwhich is fixed to the back by means of a rivet and has an openingexecuted so to make a ring-shaped tab when the edge of the round plateis bending up, and besides a line of weakness is made on the crown capand begins from periphery edge of the crowned skirt and comes to theperiphery edge with forming tearing strip having a hole for the rivettherein, which differs in that a length of an arc of the tearing stripfrom the beginning of the line of weakness up to its extremity does notexceed π/2 radian, and the opening has a ring nonclosed shape and issymmetric in relation to a diametrical axis of the round plate, andbesides the hole for the rivet is located on said diametrical axis so,that it is in a segment of the round plate in which there is no thering-shaped opening.
 9. The crown cap of claim 8 which differ in that alength of an arc of the ring-shaped opening is π . . . 11π/6 radian. 10.The crown cap of claim 8 which differ in that the centre of thering-shaped opening coincides with the centre of the round plate. 11.The crown cap of claim 8 which differ in that the ring-shaped openinghas the sizes relatively of external diameter of the round plate asfollows: external diameter—0,5 . . . 0,9, internal diameter—0,4 . . .0,85.
 12. The crown cap of claim 8, which differ in that an elasticround laying corresponding to diameter of a corking bottle neck isinserted inside the crown cap.
 13. The crown cap of claim 8, whichdiffer in that it is at least one spherical tongue made on an outersurface of the crown cap back and inserted into the opening.
 14. Thecrown cap of claim 8, which differ in that there are gettings made inthe ends of the ring-shaped opening on the side of its internaldiameter.
 15. The crown cap of claim 14, which differ in that the endsof the ring-shaped opening are rounded, and diameter of these rounds ismore than width of the ring-shaped opening.
 16. The crown cap of claim15, which differ in that external diameter of the ring-shaped openingconjugates with rounds smoothly.
 17. A crown cap for corking bottleswhich is made as a cap with a crowned skirt and provided with around-shaped tag formed on a back of the crown cap entirely with it andhaving a round-shaped opening for finger therein, and it is possible toseparate the tag from the crown cap back along a nonclosed externalgeneratrix whose ends are connected smoothly with non-intersecting linesof weakness which are ended on a periphery edge of the crowned skirtwith forming a tearing strip having a width no more than greatesttraversal size of the tag, and an elastic round laying corresponding todiameter of a corking bottle neck is inserted inside the crown cap,which differ in that a rigid round laying corresponding to diameter ofthe corking bottle neck is in addition inserted inside the crown capbefore the elactic laying, and besides each of said layings has aplate-shaped form and is made with a recess opposite the opening, andthe tag is separated from the crown cap back by means of a slit locatedalong the nonclosed external generatrix.
 18. The crown cap of claim 17,which differ in that at least a part of edge of the opening is spinnedin to inside of the crown cap.
 19. The crown cap of claim 17, whichdiffer in that it is a stiffening rib made on the tag and locatedbetween edge of the opening and the nonclosed external generatrix, andconvexity of the stiffening rib is directed downwards or upwards. 20.The crown cap of claim 17, which differ in that the tag with the openingas well as the tearing strip is symmetric in relation to a diametricalaxis of the crown cap back.
 21. The crown cap of claim 17, which differin that the opening is made in the form of an oval so, that the greatestsize of the oval is on a line which is perpendicular to axes of asymmetry of the tag, and the nonclosed external generatrix isequidistant to the oval generatrix so, that distance between itsextremities is less than the greatest size of the oval.
 22. The crowncap of claim 21, which differ in that the rigid round laying has an openexcision formed as a truncated sector, and besides lateral sides of thesector are approximately coincided with the lines of weakness of thecrown cap.
 23. A crown cap for corking bottles which is made from asheet material as a cap with a crowned skirt entirely with a tag-strip,one end of the tag-strip is provided with a tag having an opening forfinger and other end of the tag-strip is conjugated with periphery edgeof the crowned skirt, and the tag-strip is bent so, that one part of thetag-strip lays on an outer surface of the crowned skirt and other partof the tag-strip lays on an outer surface of the crown cap back, andbesides two lines of weakness are made on the crown cap which begin fromplaces of the conjunction of the tag-strip with the periphery edge ofthe crowned skirt, with forming a tearing strip, which differ in that itis a plate-shaped recess made on the crown cap back, the center of theplate-shaped recess coincides with the centre of a circle of the crowncap back, diameter of the plate-shaped recess is no more than internaldiameter of a neck of a corked bottle and not less than diameter ofcircumscribing circle of the external generatrix of the tag, and the taglays on the outer surface of the crown cap back in the place of theplate-shaped recess and does not extend over the external sizes of theplate-shaped recess.
 24. The crown cap of claim 23, which differ in thata round- or ring-shaped elastic laying corresponding to diameter of acorking bottle neck is inserted inside the crown cap.
 25. The crown capof claim 23, which differ in that the tag with the opening as well asthe tearing strip is symmetric in relation to a diametrical axis of thecrown cap back.
 26. The crown cap of claim 23, which differ in that thetag has round-shaped form.
 27. The crown cap of claim 23, which differin that the plate-shaped recess is made round on a plan view.
 28. Thecrown cap of claim 23, which differ in that depth of the plate-shapedrecess is approximately equal to thickness of the sheet material. 29.The crown cap of claim 23, which differ in that the lines of weaknessform the tearing strip which is symmetric in relation to a diametricalaxis of the crown cap back.
 30. The crown cap of claim 23, which differin that stress concentrators are made in the places of the conjunctionof the tag-strip with the periphery edge of the crowned skirt.
 31. Thecrown cap of claim 23, which differ in that the part of the tag-striplaying on the outer surface of the crowned skirt is is equidistant tothis outer surface.
 32. The crown cap of claim 23, which differ in thatit is a stiffening rib made on the tag and located between the externalgeneratrix of the tag and edge of the opening for the finger.
 33. Thecrown cap of claim 23, which differ in that at least a part of edge ofthe opening for the finger or a generatrix of this opening is spinnedin.
 34. The crown cap of claim 33, which differ in that the edge bent byspinning in is located on an outer surface of the plate-shaped recess.